The usual Wapta Traverse approach from Balfour Hut crosses the Waputik Icefield and Balfour High Col: about 10 km, climbing 520 m before dropping roughly 250 m. Expect six to eight hours in winter and a couple of hours longer in summer. Crevasses near the col and icefall hazard from Mount Balfour make this serious glacier travel; stable snow and good visibility matter.
A southern route from West Louise Lodge via Sherbrooke Lake and Niles Glacier covers about 11 km with 1,190 m of climbing, usually taking six or seven hours. It leaves the trail and crosses alpine and glacier terrain too.